Home / 20,225.39-27,911.17-11,273.46

Finding the Fourth Proportional to 20,225.39, 27,911.17 and 11,273.46

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Solution

The fourth proportional to 20,225.39, 27,911.17 and 11,273.46 is: 15,557.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.39 : 27,911.17 = 11,273.46 : x
  2. Step 2: Convert to fraction form
    20,225.39/27,911.17 = 11,273.46/x
  3. Step 3: Cross multiply
    20,225.39x = 27,911.17 × 11,273.46
  4. Step 4: Simplify right side
    20,225.39x = 314,655,363.44
  5. Step 5: Solve for x
    x = 314,655,363.44/20,225.39
  6. Step 6: Final answer
    x = 15,557.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.